JPS591772A - Water absorbable raised fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water-absorbing raised fabric consisting primarily of synthetic fibers.

Conventionally, in the field of fabrics that require water absorbency, such as towels, among natural fibers, cotton has been used in overwhelming proportions, and synthetic fibers have been almost neglected. The reason is,
This is due to the hydrophobic nature of synthetic fibers, that is, their difficulty in getting wet or absorbing water, and the fact that they feel cool to the touch after getting wet.

The inventors of the present invention have conducted extensive research in order to resolve the above-mentioned problems and provide an excellent synthetic fiber material that is comfortable to use, even for applications that require water absorption. When we consider the water absorbency required for uses such as towels, the absorption of water as a gas, that is, water vapor, is not important, but the absorption and retention of water as a liquid is important, and the mechanism is as follows. In the first stage, at the beginning of use, that is, when a small amount of water is absorbed, adsorption is mainly on the fiber surface, and the second stage, when the limit of surface adsorption is exceeded, is water retention due to capillary action in the fine fiber gaps. (2) The means corresponding to the first step is to increase the surface area of the fibers, and specifically, effective methods include making the fibers finer in denier, irregularly shaped, and porous. An effective means for the second stage is to increase the air content while keeping the size of the fiber gaps small, such as raising the fabric and woolly processing the yarn. The measures for the first and second stages are related to the structure of the fabric, and in addition to these, K needs to have a high wetting speed, that is, to be easy to wet, in order to obtain the expected effect.
Based on the fact that water absorption or hydrophilic treatment is essential, various studies were conducted and the present invention was completed.

That is, the present invention is a water-absorbing raised fabric obtained by subjecting a raised fabric containing 40@fir or more of ultrafine synthetic fibers having a single fiber denier of 1.0 or less to hydrophilic processing.

The ultrafine synthetic fiber having a single fiber denier of 1.0 or less used in the present invention may be any known fiber. Examples of these include split-peel type composite fibers, seabird type composite fibers, ultrafine synthetic lI1. There is strength.

In the present invention, 9 knitted fabrics are produced using ultrafine fibers such as spinnerets or composite fibers of ultrafine fiber generation type, or in combination with other ordinary synthetic fibers.

Create fabrics such as non-woven fabrics. Preferably, filament yarns such as polynisdel are used as the warp yarns, and ultrafine fibers or their generated composite fibers are used as the weft yarns to form a double-sided satin fabric.

Both or one side of the obtained fabric is raised by a conventional method and apparatus to obtain a raised fabric. It is necessary that the content of ultrafine synthetic fibers with a single fiber denier of 1.0 or less in the fabric be 40 or more. Below this,
The effects of the present invention are not fully achieved. When seabird-type composite fibers are used, it is necessary to perform sea removal treatment at an appropriate stage.

The thus obtained raised fabric is hydrophilized by a known method using a known water-absorbing or hydrophilic resin such as polyethylene terephthalate copolymerized with polyoxyethylene.

The type of resin, amount of adhesion, and other processing conditions are based on wicking of raised fabric (JIS L 1096.6.26.t
It is preferable to select such that the time (depending on the time) is 2 seconds or less. It goes without saying that the raised fabric of the present invention may be subjected to conventional dyeing at an appropriate stage, if necessary.

The water-absorbent raised fabric of the present invention has excellent water absorption and cell aqueous properties, and has a good feel to the touch, making it suitable for uses such as towels, handkerchiefs, pass mats, wiping cloths, and bedclothes.

Hereinafter, the present invention will be explained in detail with reference to Examples.

Example 1 A double-sided raised fabric was created by using 1007'' neel 48 filament long polyester fibers as warp yarns and 150 denier 360 filament long polyester fibers as weft yarns, and raised 4 times twice each on the front and back sides. Repeatedly, the fabric is raised on both sides so that the number of times each side is raised is 8 times,
Staining was carried out using a conventional method. Next, the fibers were subjected to hydrophilic treatment by in-bath exhaustion treatment (80°C x 20 molecules P'') in which polyethylene terephthalate (trade name: Perm μm's TM, manufactured by ICI) copolymerized with polyoxyethylene was added in an amount of 5% by weight of the fiber weight. After applying, drying (120°C x 3 minutes) and heat setting (180°C x 30 seconds) were performed.

The water absorbency of this fabric is wicking (J48L 109
6.6.26. I A method) 1 second, bisic method suction (JIEI L 1096.6.26. I B method) 1
The amount was 60 mg, and the fabric was suitable for use as towels, etc., and had good texture and water absorption.

[Brief explanation of the drawing]

Figure 1 shows a cross-section of a double-sided raised fabric of the present invention, and Figure 2 shows a cross-section of a single-sided raised fabric, in which 1 is a raised layer mainly made of ultrafine fibers, and 2 is a raised layer made of ultrafine fibers and/or ordinary yarn. It is a non-raised layer consisting of Patent applicant Teijin Ltd.

Claims (1)

[Claims] l. 4 ultra-fine synthetic fibers with a single fiber denier of 1.0 or less
A water-absorbent raised fabric obtained by subjecting a raised fabric containing 0 weight or more to hydrophilic treatment. 2. The water-absorbent raised fabric according to claim 1, which has a wicking time of 2 seconds or less.